WSDL import command

[sgutierr]

This is an enhancement requested in order improve the SOAP service management, it consist of creating a new command that reads a WSDL file and perform this actions in 3scale:

• Create a new empty 3scale API product with API Key as authentication method
• Setting the SOAP address location as a backend API URL.
• Creating a 3scale metric for each SOAP Action defined into de WSDL.
• Configuring the 3scale SOAP policy mapping the SOAP Actions with the 3scale metrics created before.